<template>
  <Dialog v-model="dialogVisible" :title="t('common.importForm.title')" width="400">
    <el-upload
      ref="uploadRef"
      v-model:file-list="fileList"
      :action="importUrl + `?instanceId=${instanceId}`"
      :auto-upload="false"
      :disabled="formLoading"
      :headers="uploadHeaders"
      :limit="1"
      :on-error="submitFormError"
      :on-exceed="handleExceed"
      :on-success="submitFormSuccess"
      accept=".xlsx, .xls"
      drag
    >
      <Icon icon="ep:upload" />
      <div class="el-upload__text"
        >{{ t('common.importForm.dragUpload')
        }}<em>{{ t('common.importForm.clickUpload') }}</em></div
      >
      <template #tip>
        <div class="el-upload__tip text-center">
          <span>{{ t('common.importForm.fileFormat') }}</span>
          <el-link
            :underline="false"
            style="font-size: 12px; vertical-align: baseline"
            type="primary"
            @click="importTemplate"
          >
            {{ t('common.importForm.downloadTemplate') }}
          </el-link>
        </div>
      </template>
    </el-upload>
    <template #footer>
      <el-button :disabled="formLoading" type="primary" @click="submitForm">{{
        t('common.ok')
      }}</el-button>
      <el-button @click="dialogVisible = false">{{ t('common.cancel') }}</el-button>
    </template>
  </Dialog>
</template>
<script lang="ts" setup>
import request from '@/config/axios'
import { getAccessToken, getTenantId } from '@/utils/auth'
import download from '@/utils/download'

defineOptions({ name: 'DifferExcelImport' })

defineProps({
  instanceId: {
    type: String,
    required: true
  }
})

const message = useMessage() // 消息弹窗
const { t } = useI18n() // 国际化

const dialogVisible = ref(false) // 弹窗的是否展示
const formLoading = ref(false) // 表单的加载中
const uploadRef = ref()
const importUrl =
  import.meta.env.VITE_BASE_URL + import.meta.env.VITE_API_URL + '/awards/candidate/import-diff'
const uploadHeaders = ref() // 上传 Header 头
const fileList = ref([]) // 文件列表

/** 打开弹窗 */
const open = () => {
  dialogVisible.value = true
  fileList.value = []
  resetForm()
}
defineExpose({ open }) // 提供 open 方法，用于打开弹窗

/** 提交表单 */
const submitForm = async () => {
  if (fileList.value.length == 0) {
    message.error(t('common.importForm.selectFile'))
    return
  }
  // 提交请求
  uploadHeaders.value = {
    Authorization: 'Bearer ' + getAccessToken(),
    'tenant-id': getTenantId()
  }
  formLoading.value = true
  uploadRef.value!.submit()
}

/** 文件上传成功 */
const emits = defineEmits(['success'])
const submitFormSuccess = (response: any) => {
  if (response.code !== 0) {
    message.error(response.msg)
    formLoading.value = false
    return
  }
  // 拼接提示语
  const data = response.data
  let text = ''
  if (data.createRecords.length > 0) {
    text = t('common.importForm.success') + data.createRecords.length + ';'
    for (let record of data.createRecords) {
      text += '< ' + record + ' >'
    }
  }
  if (data.updateRecords.length > 0) {
    text += t('common.importForm.upload') + data.updateRecords.length + ';'
    for (const record of data.updateRecords) {
      text += '< ' + record + ' >'
    }
  }
  if (Object.keys(data.failureRecords).length > 0) {
    text += t('common.importForm.error') + Object.keys(data.failureRecords).length + ';'
    for (const record in data.failureRecords) {
      text += '< ' + record + ': ' + data.failureRecords[record] + ' >'
    }
  }
  if (!text) {
    text = t('common.importForm.noData')
  }
  message.alert(text)
  formLoading.value = false
  dialogVisible.value = false
  // 发送操作成功的事件
  emits('success')
}

/** 上传错误提示 */
const submitFormError = (): void => {
  message.error(t('common.importForm.uploadFail'))
  formLoading.value = false
}

/** 重置表单 */
const resetForm = async (): Promise<void> => {
  // 重置上传状态和文件
  formLoading.value = false
  await nextTick()
  uploadRef.value?.clearFiles()
}

/** 文件数超出提示 */
const handleExceed = (): void => {
  message.error(t('common.importForm.oneMax'))
}

/** 下载模板操作 */
const importTemplate = async () => {
  const res = await request.download({
    url: '/awards/candidate/get-differ-template',
    options: { timeout: 0 }
  })
  download.excel(res, `差额评选${t('common.importForm.template')}.xlsx`)
}
</script>
